Spermatogenesis is the process of male germ cells or spermatogonia forming haploid male gametes, sperms, or spermatozoa.
The seminiferous tubules of the testes (the male reproductive organ) are where the sperm are created.
Males begin spermatogenesis when they reach puberty.
It produces mature male gametes that can be fertilized with an ovum to produce a zygote.
End of Spermatogenesis:
Spermatogenesis is a lifetime process that continues in males even if they get older.
However, the spermatogenic efficiency as measured by the number of spermatozoa produced each day per gram of testicular parenchyma appears to decrease with age.